There was an old B&W film - late 1940s, to mid 1950s - where in a dog was reincarnated as a man and a race horse was reincarnated as a woman (her hat had two feathers on it that looked like horses ears!! ). :p They were trying to save the life of the woman who owned the dog (he knew who killed him and that person was after his owner). It is rather a comedy with a light suspense twist.

Haven't seen it in over 20 yrs, but never forgot the film. Can not for the life of me recall the title or the names of actors. :o

Can anyone help?

You Never Can Tell (1951) (http://www.imdb.com/title/tt0044223/)